* Copyright (C) 2004, 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#include "config.h"
#endif
-#include <stdlib.h>
-#include <string.h>
-
-#include "types.h"
#include "log.h"
-
#include "binarybuffer.h"
-int buf_set_u32(u8* buffer, unsigned int first, unsigned int num, u32 value);
-u32 buf_get_u32(u8* buffer, unsigned int first, unsigned int num);
-u32 flip_u32(u32 value, unsigned int num);
-
-const unsigned char bit_reverse_table256[] =
+const unsigned char bit_reverse_table256[] =
{
- 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
- 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
- 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
- 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
- 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
+ 0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
+ 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8, 0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8,
+ 0x04, 0x84, 0x44, 0xC4, 0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
+ 0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC, 0x3C, 0xBC, 0x7C, 0xFC,
+ 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2, 0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2,
0x0A, 0x8A, 0x4A, 0xCA, 0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
- 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
+ 0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6, 0x36, 0xB6, 0x76, 0xF6,
0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE, 0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE,
0x01, 0x81, 0x41, 0xC1, 0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
- 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
+ 0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9, 0x39, 0xB9, 0x79, 0xF9,
0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5, 0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5,
0x0D, 0x8D, 0x4D, 0xCD, 0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
- 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
+ 0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3, 0x33, 0xB3, 0x73, 0xF3,
0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB, 0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB,
- 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
+ 0x07, 0x87, 0x47, 0xC7, 0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
};
-int buf_set_u32(u8* buffer, unsigned int first, unsigned int num, u32 value)
-{
- unsigned int i;
-
- if (!buffer)
- return ERROR_INVALID_ARGUMENTS;
-
- for (i=first; i<first+num; i++)
- {
- if (((value >> (i-first))&1) == 1)
- buffer[i/8] |= 1 << (i%8);
- else
- buffer[i/8] &= ~(1 << (i%8));
- }
-
- return ERROR_OK;
-}
-
-u32 buf_get_u32(u8* buffer, unsigned int first, unsigned int num)
-{
- u32 result = 0;
- unsigned int i;
-
- if (!buffer)
- {
- ERROR("buffer not initialized");
- return 0;
- }
-
- for (i=first; i<first+num; i++)
- {
- if (((buffer[i/8]>>(i%8))&1) == 1)
- result |= 1 << (i-first);
- }
-
- return result;
-}
-u8* buf_cpy(u8 *from, u8 *to, int size)
+u8* buf_cpy(const u8 *from, u8 *to, int size)
{
- int num_bytes = CEIL(size, 8);
+ unsigned int num_bytes = CEIL(size, 8);
unsigned int i;
if (from == NULL)
for (i = 0; i < num_bytes; i++)
to[i] = from[i];
-
- /* mask out bits that don't belong to the buffer */
+
+ /* mask out bits that don't belong to the buffer */
if (size % 8)
{
to[size / 8] &= (0xff >> (8 - (size % 8)));
return to;
}
-int buf_cmp(u8 *buf1, u8 *buf2, int size)
+int buf_cmp(const u8 *buf1, const u8 *buf2, int size)
{
int num_bytes = CEIL(size, 8);
int i;
return 0;
}
-int buf_cmp_mask(u8 *buf1, u8 *buf2, u8 *mask, int size)
+int buf_cmp_mask(const u8 *buf1, const u8 *buf2, const u8 *mask, int size)
{
int num_bytes = CEIL(size, 8);
int i;
/* mask out bits that don't really belong to the buffer if size isn't a multiple of 8 bits */
if ((size % 8) && (i == num_bytes -1 ))
{
- if ((buf1[i] & ((1 << (size % 8)) - 1) & mask[i]) !=
+ if ((buf1[i] & ((1 << (size % 8)) - 1) & mask[i]) !=
(buf2[i] & ((1 << (size % 8)) - 1) & mask[i]))
return 1;
}
buf[i] = 0xff;
else
buf[i] = (1 << count) - 1;
-
+
count -= 8;
}
-
+
return buf;
}
-u8* buf_set_buf(u8 *src, int src_start, u8 *dst, int dst_start, int len)
+u8* buf_set_buf(const u8 *src, int src_start, u8 *dst, int dst_start, int len)
{
int src_idx = src_start, dst_idx = dst_start;
int i;
-
+
for (i = 0; i < len; i++)
{
if (((src[src_idx/8] >> (src_idx % 8)) & 1) == 1)
u32 flip_u32(u32 value, unsigned int num)
{
u32 c;
-
- c = (bit_reverse_table256[value & 0xff] << 24) |
- (bit_reverse_table256[(value >> 8) & 0xff] << 16) |
+
+ c = (bit_reverse_table256[value & 0xff] << 24) |
+ (bit_reverse_table256[(value >> 8) & 0xff] << 16) |
(bit_reverse_table256[(value >> 16) & 0xff] << 8) |
(bit_reverse_table256[(value >> 24) & 0xff]);
int ceil_f_to_u32(float x)
{
u32 y;
-
+
if (x < 0) /* return zero for negative numbers */
return 0;
-
+
y = x; /* cut off fraction */
-
+
if ((x - y) > 0.0) /* if there was a fractional part, increase by one */
y++;
-
+
return y;
}
-char* buf_to_str(u8 *buf, int buf_len, int radix)
+char* buf_to_str(const u8 *buf, int buf_len, int radix)
{
- const char *DIGITS = "0123456789abcdef";
+ const char *DIGITS = "0123456789ABCDEF";
float factor;
char *str;
int str_len;
int j; /* base-256 digits */
int i; /* output digits (radix) */
-
+
if (radix == 16)
{
factor = 2.0; /* log(256) / log(16) = 2.0 */
else if (radix == 10)
{
factor = 2.40824; /* log(256) / log(10) = 2.40824 */
- }
+ }
else if (radix == 8)
{
factor = 2.66667; /* log(256) / log(8) = 2.66667 */
}
else
return NULL;
-
+
str_len = ceil_f_to_u32(CEIL(buf_len, 8) * factor);
str = calloc(str_len + 1, 1);
-
+
for (i = b256_len - 1; i >= 0; i--)
- {
- tmp = buf[i];
- if ((i == (buf_len / 8)) && (buf_len % 8))
- tmp &= (0xff >> (8 - (buf_len % 8)));
-
- for (j = str_len; j > 0; j--)
- {
- tmp += (u32)str[j-1] * 256;
- str[j-1] = (u8)(tmp % radix);
- tmp /= radix;
- }
- }
-
- for (j = 0; j < str_len; j++)
+ {
+ tmp = buf[i];
+ if ((i == (buf_len / 8)) && (buf_len % 8))
+ tmp &= (0xff >> (8 - (buf_len % 8)));
+
+ for (j = str_len; j > 0; j--)
+ {
+ tmp += (u32)str[j-1] * 256;
+ str[j-1] = (u8)(tmp % radix);
+ tmp /= radix;
+ }
+ }
+
+ for (j = 0; j < str_len; j++)
str[j] = DIGITS[(int)str[j]];
-
+
return str;
}
-int str_to_buf(char* str, int str_len, u8 *buf, int buf_len, int radix)
+int str_to_buf(const char *str, int str_len, u8 *buf, int buf_len, int radix)
{
char *charbuf;
u32 tmp;
float factor;
u8 *b256_buf;
- int b256_len;
-
+ int b256_len;
+
int j; /* base-256 digits */
int i; /* input digits (ASCII) */
-
- if (radix == 0)
+
+ if (radix == 0)
{
/* identify radix, and skip radix-prefix (0, 0x or 0X) */
if ((str[0] == '0') && (str[1] && ((str[1] == 'x') || (str[1] == 'X'))))
radix = 10;
}
}
-
+
if (radix == 16)
factor = 0.5; /* log(16) / log(256) = 0.5 */
else if (radix == 10)
charbuf = malloc(str_len + 1);
memcpy(charbuf, str, str_len);
charbuf[str_len] = '\0';
-
+
/* number of digits in base-256 notation */
b256_len = ceil_f_to_u32(str_len * factor);
b256_buf = calloc(b256_len, 1);
-
+
/* go through zero terminated buffer */
for (i = 0; charbuf[i]; i++)
- {
+ {
tmp = charbuf[i];
- if ((tmp >= '0') && (tmp <= '9'))
- tmp = (tmp - '0');
- else if ((tmp >= 'a') && (tmp <= 'f'))
- tmp = (tmp - 'a' + 10);
- else if ((tmp >= 'A') && (tmp <= 'F'))
- tmp = (tmp - 'A' + 10);
- else continue; /* skip characters other than [0-9,a-f,A-F] */
-
- if (tmp >= radix)
- continue; /* skip digits invalid for the current radix */
-
+ if ((tmp >= '0') && (tmp <= '9'))
+ tmp = (tmp - '0');
+ else if ((tmp >= 'a') && (tmp <= 'f'))
+ tmp = (tmp - 'a' + 10);
+ else if ((tmp >= 'A') && (tmp <= 'F'))
+ tmp = (tmp - 'A' + 10);
+ else continue; /* skip characters other than [0-9,a-f,A-F] */
+
+ if (tmp >= (u32)radix)
+ continue; /* skip digits invalid for the current radix */
+
for (j = 0; j < b256_len; j++)
- {
- tmp += (u32)b256_buf[j] * radix;
- b256_buf[j] = (u8)(tmp & 0xFF);
- tmp >>= 8;
- }
-
+ {
+ tmp += (u32)b256_buf[j] * radix;
+ b256_buf[j] = (u8)(tmp & 0xFF);
+ tmp >>= 8;
+ }
+
}
-
+
for (j = 0; j < CEIL(buf_len, 8); j++)
{
if (j < b256_len)
/* mask out bits that don't belong to the buffer */
if (buf_len % 8)
buf[(buf_len / 8)] &= 0xff >> (8 - (buf_len % 8));
-
+
free(b256_buf);
free(charbuf);
-
+
return i;
}
int buf_to_u32_handler(u8 *in_buf, void *priv, struct scan_field_s *field)
{
u32 *dest = priv;
-
+
*dest = buf_get_u32(in_buf, 0, 32);
-
+
return ERROR_OK;
}
projects / fw / openocd / blobdiff